US7523751B2 - Device and method for providing a controlled mixture of gas and vapor to a patient - Google Patents

Device and method for providing a controlled mixture of gas and vapor to a patient Download PDF

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Publication number
US7523751B2
US7523751B2 US11/381,694 US38169406A US7523751B2 US 7523751 B2 US7523751 B2 US 7523751B2 US 38169406 A US38169406 A US 38169406A US 7523751 B2 US7523751 B2 US 7523751B2
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US
United States
Prior art keywords
gas
fluid
mixture
vapor
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US11/381,694
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English (en)
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US20070256686A1 (en
Inventor
Israel Lerner
Zeev Rosner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhinocare Ltd
Original Assignee
Ultra Rhino Therm Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ultra Rhino Therm Ltd filed Critical Ultra Rhino Therm Ltd
Priority to US11/381,694 priority Critical patent/US7523751B2/en
Assigned to ULTRA RHINO THERM LTD. reassignment ULTRA RHINO THERM LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LERNER, ISRAEL, ROSNER, ZEEV
Priority to CN2007800160691A priority patent/CN101466426B/zh
Priority to JP2009508660A priority patent/JP5117488B2/ja
Priority to EP07736248.1A priority patent/EP2018199B1/fr
Priority to PCT/IL2007/000508 priority patent/WO2007129297A2/fr
Publication of US20070256686A1 publication Critical patent/US20070256686A1/en
Priority to IL195036A priority patent/IL195036A/en
Publication of US7523751B2 publication Critical patent/US7523751B2/en
Application granted granted Critical
Assigned to RHINOCARE LTD. reassignment RHINOCARE LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ULTRA RHINO THERM LTD.
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/109—Preparation of respiratory gases or vapours by influencing the temperature the humidifying liquid or the beneficial agent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/06—Sprayers or atomisers specially adapted for therapeutic purposes of the injector type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A61M16/162—Water-reservoir filling system, e.g. automatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature

Definitions

  • the present invention relates to a device and a method for providing a controlled mixture of gas and vapor to a patient and especially for treating rhinitis.
  • the hot air must fulfill certain conditions.
  • the temperature of the air should not exceed 47° C. in order to avoid damage to the mucous membrane of the patient's nose.
  • the humidity of the air must be as high as possible in order to avoid discomfort and a feeling of dryness in the patient. Maintaining these conditions usually required using relatively costly control mechanisms.
  • many prior devices required using distilled water, which is more expensive than non-distilled water.
  • a device includes multiple tilted heating elements located within a housing; wherein the housing includes: (i) a fluid reservoir inlet that is adapted to receive a fluid reservoir, (ii) a gas inlet that is adapted to receive pressurized gas, and (iii) a gas-vapor outlet.
  • the housing defines a hollow space in which gas and vapor mix heated and fluid that flows from the fluid reservoir.
  • the temperature of the mixture of gas and vapor can be set to a certain level by using a predefined fluid and determining the height of the fluid reservoir.
  • the temperature of the mixture of gas and vapor may be set by setting the tilt angle between the multiple heating elements (or equivalently—setting the angle between the multiple heating elements) and/or determining the distance between the multiple heating elements.
  • the bottom of the housing includes a sloped portion, and a lower portion (such as a U-shaped portion) that starts at the lower end of the sloped section. Fluid from the inverted fluid reservoir flows along the sloped portion towards the U-shaped portion.
  • the lower portions of the tilted heating elements are positioned within the space defined by the U-shaped portion.
  • the level of the fluid within the housing is determined by the position of the outlet of the inverted fluid reservoir.
  • the level of the fluid within the housing is determined by the position of the outlet of the inverted fluid reservoir.
  • an additional fluid can be added to the gas and vapor mixture, conveniently by using a mixing system.
  • FIG. 1 illustrates three cross sections of a device configured according to an embodiment of the invention
  • FIG. 2 illustrates three cross sections of device according to another embodiment of the invention.
  • FIG. 3 is a flow chart of a method for providing a controlled mixture of gaseous medium and fluid, according to an embodiment of the invention.
  • a mixture of gas and vapor is provided to a client.
  • the temperature and the humidity of the mixture can be maintained by using substantially the same fluid and by supplying the same amount of fluid to the device.
  • the device heats a fluid such as water to provide vapor by using tilted heating elements.
  • a fluid such as water
  • the device heats a fluid such as water to provide vapor by using tilted heating elements.
  • Bubbles are formed on the surface of the fluid and below the surface of the fluid. Bubbles that are formed on the surface of the fluid increase the effective contact area of the heating elements thus increase the amount of vapors that are produced by the fluid heating process.
  • bubbles that are formed within the fluid reduce the heat conductivity of the fluid and eventually reduce the amount of vapor that is generated by the fluid heating process.
  • tilted heating elements In order to maintain a steady amount of bubbles, tilted heating elements are used. Their tilt reduces the amount of bubbles that are formed over the surface while increasing the amount of bubbles formed within the fluid.
  • the inventors used a device in which the angle ( ⁇ ) between a first and a second heating element (such as an electrode) ranged between one degree and thirty degrees.
  • FIG. 1 illustrates three cross sections of device 1 according to an embodiment of the invention.
  • the first cross section is taken along an imaginary longitudinal axis.
  • the other two cross sections were taken along two latitudinal axes X-X and Y-Y.
  • the inventors used a housing 22 that included a sloped portion that was oriented (in relation to the horizon) at an angle ( ⁇ ) that ranged between zero and ten degrees.
  • the device includes a housing 22 that is adapted to receive an inverted fluid reservoir 19 .
  • the inverted fluid reservoir 19 has a fluid outlet.
  • the level (denoted 5 ) of the fluid within the housing 22 is determined by the location (height) of the fluid outlet of the inverted reservoir 19 .
  • the bottom of the housing 22 includes a sloped portion 4 , such that the volume of fluid that contacts the fluid outlet of the inverted fluid reservoir 19 is relatively small.
  • vapor and heat that exit the fluid are forced to exit housing 22 by the gas stream that flows through housing 22 .
  • Device 1 includes multiple tilted heating elements, such as tilted electrodes 6 and 6 ′ that are located within housing 22 .
  • the housing 22 includes fluid reservoir inlet 24 that is adapted to receive an inverted fluid reservoir 19 , gas inlet 7 that is adapted to receive pressurized gas from gas pipe 15 , gas-vapor outlet 25 and gas directing barrier 8 that is positioned between the gas inlet 7 and the gas-vapor outlet 25 such as to direct gas to flow towards the gas-vapor outlet 25 .
  • the gas inlet 7 is vertical and it directs gas downwards, while the gas-vapor outlet 25 is also vertical.
  • the gas directing barrier 8 is a vertical plate that forces gas to pass beneath it and then to propagate upwards, towards the gas-vapor outlet.
  • the housing 22 is illustrated as having multiple vertical inlets and outlets on its horizontal upper part, but other configuration can be used.
  • the temperature of the mixture of gas and vapor can be set to a certain level by using predefined fluid and determining the height of the fluid reservoir.
  • the height of the fluid is defined by the height of the inverted fluid reservoir 19 .
  • the inventors used an inverted fluid reservoir that has a certain projection that is shaped so as to contact the fluid reservoir inlet 24 and maintain the inverted fluid reservoir at a certain height.
  • the temperature of the mixture of gas and vapor is set by setting the tilt angle between the multiple heating elements (or equivalently—setting the angle between the multiple heating elements) and determining the distance between the multiple heating elements.
  • the distance (T) between the heating elements is fixed but different devices can be characterized by setting (tilt angle, distance) of the heating elements.
  • the heating elements can be positioned in different positioned, thus allowing an alteration of the temperature of the heated fluid.
  • element 40 can be placed into the fluid. If that element is made of a conductive material it can increase the heating of the fluid. If is made of isolating material it can decrease the heating. It is further notes that vertically shifting this element can increase or decrease the heating.
  • the bottom of the housing includes a sloped duct portion 4 and a lower (such as U-shaped) portion 20 that starts at the lower end of the sloped portion 4 .
  • Fluid from the inverted fluid reservoir 19 flow along the sloped portion 4 towards the U-shaped portion 20 .
  • the lower portions of the tilted heating elements 6 and 6 ′ are positioned within the space defined by the U-shaped portion 20 .
  • the level (denoted 5 ) of the fluid within the housing 22 is determined by the position of the fluid outlet of the inverted fluid reservoir 19 .
  • Gas is forced into the housing 22 by a compressor 14 that can include a motor and a filter that enables filtered gas to flow towards gas pipe 15 .
  • the gas then flows through gas inlet 7 of housing 22 and into a hollow space 3 , over gas directing barrier 8 and then exits housing 22 , after being mixed with vapor, through gas-vapor outlet 25 , output pipe 10 and nozzle 24 .
  • the U-shaped portion 20 is connected to a drainage tap 13 .
  • a thermal switch 42 can stop the flow of current through the heating elements to prevent overheating of the fluid.
  • the device 1 typically operates as follows. Voltage is applied to tilted heating elements 6 and 6 ′ that in turn heat fluid such as to generate vapor 9 .
  • gas flows from compressor 14 , via gas pipe 15 , via gas inlet 7 to space 3 . Accordingly both gas and vapor are provided to space 3 is mixed with humid 9 and is forced to exit housing 22 via gas-vapor outlet 25 .
  • the mixture of gas and vapor is formed above heating elements 6 and 6 ′.
  • the mixture flows through gas-vapor outlet 25 , pipe 10 and nozzle 24 towards a patient.
  • FIG. 2 illustrates three cross sections of device 100 according to another embodiment of the invention.
  • the first cross section is taken along an imaginary longitudinal axis.
  • the other two cross sections were taken along two latitudinal axes X-X and Y-Y.
  • Device 100 differs from device 1 of FIG. 1 by including an additional compressor 18 , an additional gas pipe 110 , a mixing system 119 , and an additional mixture inlet 123 that enables a provision of a mixture of gas and additional fluid droplets to the patient.
  • device 100 can provide to a patient a mixture of gas, vapor and additional fluid droplets.
  • the additional fluid is a drug or another type of fluid that should not be heated.
  • the additional compressor 18 is characterized by a higher capacity than compressor 14 and outputs gas at higher pressure than the pressure of gas that is outputted by compressor 14 . Accordingly, the additional mixture that is outputted from the mixing system 119 Is mixed with the mixture that is output from housing 19 and exits pipe 10 via nozzle 24 .
  • Mixing system 119 includes a fluid inlet and cap 121 as well as an inner short constricted Venturi tube 126 and a larger inlet 129 for receiving gas from additional gas pipe 110 and a much smaller tube 127 from which additional fluid is sucked and tiny droplets are ejected towards additional mixture pipe 110 that is connected to pipe 10 .
  • the additional fluid is maintained between the inner Venturi tubes 126 , 129 and the inner walls of the mixing system 119 .
  • FIG. 3 is a flow chart of a method 200 for providing a controlled mixture of gaseous medium and fluid, according to an embodiment of the invention.
  • Method 200 starts by stage 210 of providing a device that includes multiple tilted heating elements, and a housing that includes a fluid reservoir inlet that is adapted to receive an inverted fluid reservoir, a gas inlet that is adapted to receive pressurized gas from a gas pipe, a gas-vapor outlet and a optionally a gas directing barrier that is positioned between the gas inlet and the gas-vapor outlet such as to direct gas to flow towards the gas-vapor outlet.
  • stage 220 can further include providing additional components that enable providing a mixture of gas and additional fluid droplets to a patient.
  • additional components that enable providing a mixture of gas and additional fluid droplets to a patient.
  • a device that includes such additional components is described in FIG. 2 .
  • Stage 220 is followed by stage 240 of activating the device to provide a controller mixture of gaseous medium and fluid.
  • the activation fluid is provided, the fluid is heated, gas flows through the device and vapors are provided to patient.
  • additional mixture is also provided to the patient.
  • Method 200 can also include an optional stage 230 of setting the temperature of the mixture of gas and fluid by adjusting the device. This can include determining the height of the inverted fluid reservoir, determining the type of the fluid, determining the angle between the tilted heating elements and the like.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
US11/381,694 2006-05-04 2006-05-04 Device and method for providing a controlled mixture of gas and vapor to a patient Expired - Fee Related US7523751B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US11/381,694 US7523751B2 (en) 2006-05-04 2006-05-04 Device and method for providing a controlled mixture of gas and vapor to a patient
PCT/IL2007/000508 WO2007129297A2 (fr) 2006-05-04 2007-04-25 Dispositif et procédé d'administration à un patient d'un mélange contrôlé de gaz et de vapeur
JP2009508660A JP5117488B2 (ja) 2006-05-04 2007-04-25 ガスと蒸気との制御された混合物及びその混合物を製造するための装置
EP07736248.1A EP2018199B1 (fr) 2006-05-04 2007-04-25 Dispositif et procédé de préparer d'un mélange contrôlé de gaz et de vapeur
CN2007800160691A CN101466426B (zh) 2006-05-04 2007-04-25 向患者提供气体与蒸气的受控混合物的装置和方法
IL195036A IL195036A (en) 2006-05-04 2008-10-30 Device and method for providing a controlled mixture of gas and vapor to a patient

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/381,694 US7523751B2 (en) 2006-05-04 2006-05-04 Device and method for providing a controlled mixture of gas and vapor to a patient

Publications (2)

Publication Number Publication Date
US20070256686A1 US20070256686A1 (en) 2007-11-08
US7523751B2 true US7523751B2 (en) 2009-04-28

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US11/381,694 Expired - Fee Related US7523751B2 (en) 2006-05-04 2006-05-04 Device and method for providing a controlled mixture of gas and vapor to a patient

Country Status (5)

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US (1) US7523751B2 (fr)
EP (1) EP2018199B1 (fr)
JP (1) JP5117488B2 (fr)
CN (1) CN101466426B (fr)
WO (1) WO2007129297A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013144806A2 (fr) 2012-03-24 2013-10-03 Michael Blum Systèmes et procédés de préparation d'un mélange contrôlé en vue d'un traitement hyperthermal

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US20090299329A1 (en) * 2008-05-30 2009-12-03 Dixon Charles Richard Cold treatment
WO2010077980A1 (fr) 2008-12-16 2010-07-08 Aardvark Medical, Inc. Procédés et systèmes d'administration de fluides, d'aérosols et d'énergie acoustique à des surfaces de tissu, des cavités et des passages obstrués tels que des ostiums intra-nasaux
JP6278426B2 (ja) * 2013-03-23 2018-02-14 ライノケア、 リミテッドＲｈｉｎｏｃａｒｅ Ｌｔｄ 温熱療法による治療のための管理された調合薬を調剤するシステムおよび方法
CN103480076A (zh) * 2013-10-08 2014-01-01 河南科技大学第一附属医院 一种氧气雾化器

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US4722334A (en) * 1985-07-16 1988-02-02 Transpirator Technologies, Inc. Method and apparatus for pulmonary and cardiovascular conditioning of racehorses and competition animals
US5243973A (en) * 1991-03-06 1993-09-14 Dragerwerk Aktiengesellschaft Metering device for a liquid anesthetic via an intermediate container
US5361322A (en) * 1988-12-21 1994-11-01 Dov Z Glucksman Ejector tube humidifier for blowerless mixing of air and steam
US5832917A (en) * 1995-01-23 1998-11-10 Instrumentarium Oy Method and arrangement for vaporizing an anaesthetic
US6761164B2 (en) * 2002-05-23 2004-07-13 Shahin Amirpour Herbal vaporizer
US6988497B2 (en) * 2002-09-18 2006-01-24 Medex Cardio-Pulmonary, Inc. Apparatus for equalizing air pressure in air respiratory system

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CN2421026Y (zh) * 2000-05-06 2001-02-28 王兴卫 呼吸道湿热理疗仪
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Publication number Priority date Publication date Assignee Title
US4722334A (en) * 1985-07-16 1988-02-02 Transpirator Technologies, Inc. Method and apparatus for pulmonary and cardiovascular conditioning of racehorses and competition animals
US5361322A (en) * 1988-12-21 1994-11-01 Dov Z Glucksman Ejector tube humidifier for blowerless mixing of air and steam
US5243973A (en) * 1991-03-06 1993-09-14 Dragerwerk Aktiengesellschaft Metering device for a liquid anesthetic via an intermediate container
US5832917A (en) * 1995-01-23 1998-11-10 Instrumentarium Oy Method and arrangement for vaporizing an anaesthetic
US6761164B2 (en) * 2002-05-23 2004-07-13 Shahin Amirpour Herbal vaporizer
US6988497B2 (en) * 2002-09-18 2006-01-24 Medex Cardio-Pulmonary, Inc. Apparatus for equalizing air pressure in air respiratory system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013144806A2 (fr) 2012-03-24 2013-10-03 Michael Blum Systèmes et procédés de préparation d'un mélange contrôlé en vue d'un traitement hyperthermal

Also Published As

Publication number Publication date
EP2018199B1 (fr) 2014-06-11
WO2007129297A2 (fr) 2007-11-15
CN101466426B (zh) 2012-05-02
EP2018199A4 (fr) 2012-07-25
US20070256686A1 (en) 2007-11-08
EP2018199A2 (fr) 2009-01-28
CN101466426A (zh) 2009-06-24
JP5117488B2 (ja) 2013-01-16
JP2010504764A (ja) 2010-02-18
WO2007129297A3 (fr) 2008-12-18

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